Make it True

81 x 9 = 801. What must you do to make the this equation true?




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Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

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----- -----
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Gamers

In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.